This neural network runs on an Arduino MKR GSM 1400 module. ... Having worked with (+designed+built) water quality sensors, I would take this article with a huge grain of salt.

But by the age of nine, a noticeable gap begins to emerge — girls’ confidence and enthusiasm for STEM subjects often start to ...

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...